<div class="login">
    <table>
        <tr>
            <td class="login-td"> 
                <form name="loguear" action="" method="post">
                    <table style="margin-top:45px;" align="center">
                        <tr><td><label>Login: </label></td><td><input type="text"  name="login" size="30px"  style="width:180px;" /></td></tr>
                        <tr><td><label>Clave: </label></td><td><input type="password" name="clave" size="30px" style="width:180px;" /></td></tr>
                    </table>
                    <br>
                   <div align="center">
                        <input type="submit" name="logear_admin" value="Entrar" />
                   </div>
                 </form>
                 
            </td>
        </tr>
    </table>
</div>